Nashville 400 Buzz Issue
Moderator: Dave Mudgett
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Chase Phillips
- Posts: 1
- Joined: 29 Jan 2025 2:29 pm
- Location: Alabama, USA
- State/Province: Alabama
- Country: United States
Nashville 400 Buzz Issue
Hello all. I recently purchased a chrome corner NV400 and after bringing it home today from a rehearsal, I plugged it in and turned it on when it started making a constant, uncontrollable buzzing/humming noise. The buzz was not affected by either of the gain pots, or EQ pots. I also unplugged the cable from the input jack still with no avail. I’m taking it to my local tech in the morning but any suggestions as to what might be the cause would be greatly appreciated!
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Dennis Detweiler
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- Location: Solon, Iowa, US
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Re: Nashville 400 Buzz Issue
Likely a capacitor? First look, filter capacitor.
1976 Birdseye U-12 MSA with Telonics 427 pickup, 1975 Birdseye U-12 MSA with Telonics X-12 pickup, Revelation preamp, Ibanez Analog Mini Delay and Hall Of Fame Reverb, Crown XLS 1002, 2- 15" Eminence Wheelhouse speakers, ShoBud Pedal, Effects Pedals. 1949 Epiphone D-8.
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Richard Sinkler
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Re: Nashville 400 Buzz Issue
Along with Dennis. Probably could use new filter capacitors. That would be my first step.
Carter D10 8p/7k, Dekley S10 3p/4k C6 setup, Regal RD40 Dobro (D tuning), Recording King Professional Dobro (G tuning), NV400, NV112, Ibanez Gio guitar, Epiphone SG Special (open G slide and regular G tuning guitar) .
Playing for 55 years and still counting.
Playing for 55 years and still counting.
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Jack Stanton
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Re: Nashville 400 Buzz Issue
Have you tried turning the reverb off? Also check the molex connector.
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Dave Grafe
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Re: Nashville 400 Buzz Issue
As has already been suggested,
1) ALL amps need to have their electrolytic capacitors replaced every 20 years or so, which requires appropriate knowledge and skills.
2) the Molex connectors in Peavey amps are notorious for corroding and working loose over time, these you can usually clean and reseat yourself.
The odds that it's anything else are miniscule unless someone has been mucking about in there. If you're taking it in to a decent shop they will address both of these issues first thing.
1) ALL amps need to have their electrolytic capacitors replaced every 20 years or so, which requires appropriate knowledge and skills.
2) the Molex connectors in Peavey amps are notorious for corroding and working loose over time, these you can usually clean and reseat yourself.
The odds that it's anything else are miniscule unless someone has been mucking about in there. If you're taking it in to a decent shop they will address both of these issues first thing.